The Minor Pentatonic

The way I remember the Pentatonic Scale is by remembering the 5 Shapes and giving them rememberable names. (The following Scales are in E Minor)
Shape 1

G|-0-2-|
D|-0-2-|
A|-0-2-|
E|-0-3-|

Give it a unique Name.
Shape 2

G|-2-4-|
D|-2-5-|
A|-2-5-|
E|-3-5-|

Shape 3 (Quite a similar pattern to Shape 1)

G|-4-7-|
D|-5-7-|
A|-5-7-|
E|-5-7-|

Shape 4

G|-7-9--|
D|-7-9--|
A|-7-10-|
E|-7-10-|

Shape 5

G|-9--12-|
D|-9--12-|
A|-10-12-|
E|-10-12-|

Improvising
The Minor Pentatonic May be used for Improvising and possibly Soloing. Making it a good thing to use. You may have noticed I stopped at the Twelth Fret. that's because there are only 12 Notes...
E, F, F#, G, G#, A, A#, B, C, C# D, D#.
To go higher, just repeat those shapes. Also remember that these shapes are in the Key of Emin. To go to G for example, Shape 1 starts on the 3rd Fret, and the rest of the shapes follow after (and repeat behind)
Here are all the Frets you can use using the Shapes.

true dat, I picked up bass out of necessity when i first collaborated w others at age 18 and I have been hooked ever since. It is true u must think like a bass player w harmony and melody, but you can still incorporate guitar technique into songs to fill up the sound. It's a versatile, powerful instrument that vibrates the spine of the audience. I like that.